For the given soil profile, compute the effective pressure at a depth of12m. G.L n = 0-4 G = 2-65 S = 30% S = 80 % e = 0-6 G =2-68 3m FINE SAND W.T. 1m 2m 3m SILT e =3 4m PEAT G =2-1 Wsat =35% G = 2-7 SILTY CLAY

For the given soil profile, compute the effective pressure at a depth of12m. G.L n = 0-4 G = 2-65 S = 30% S = 80 % e = 0-6 G =2-68 3m FINE SAND W.T. 1m 2m 3m SILT e =3 4m PEAT G =2-1 Wsat =35% G = 2-7 SILTY CLAY

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

B) For the soil profile shown in Figure (2), the rate of downward water flow is 0.4 m³/hr.m². Calculate: Peizometric reading at point C. Total head loss. Effective stress at point B. m 6 m A C K=1.0 m/ sec Ys = 18.0 kN/m³ e-1.2 K=0.5 m/sec Ys=20.0 kN/m² em 0.6 Datum Fig.(2) Piezometer
For a certain soil, the angle of internal friction is 30°. The coefficient of active and passive pressure. (a) 0.6, 2.4 (c) 0.5, 0.8 (b) 0.4, 1.2 (d) 0.33, 3
Given: Permeability, k = 40 x 104 cm/s Saturated unit weight of the soil = 20 kN/m³ Other information shown in the Figure E3-3 Determine the following: (a) Quantity of Discharge (b) Total vertical stress at Points B and D (c) Pore-water pressure at Points B and D (d) Effective vertical stress at points B and D 20.0 m 6.5 m 5.0 m 10.5 m Water YAY Concrete Impervious Figure E3-3 1.0 m VAYAYAY 5.0 m
11.15 For a normally consolidated σ = 2 ton/ft² • σ + A' = 4 ton/ft²2 • e = 0.96 The hydraulic conductivity k of the clay for the preceding loading range is 1.8 x 10 ft/day. • clay, the following are given: • e = e = 1.21 a. How long (in days) will it take for a 9 ft thick clay layer (drained on one side) in the field to reach 60% consolidation? b. What is the settlement at that time (that is, at 60% consolidation)?
Q1/ Determine the total head, pressure head, elevation head at points 1, 2, 3, 4, 5, 6 and velocity along the elevation 17 3.2 m Soil I, A=0.45 m², n=0.45 and k= 1.5 cm/sec, Soil II, A= 0.19 m², n=0.45 and k-0.9 cm/sec. 2.4 6 1.8 Soil-11 Soil I 1.2 0.6 0 Datum
Situation 3:The water table in a certain deposit of soil is at a depth of 2m below the ground surface. The soil consists of clay up to depth of 4m from the ground and below which lies sand. The clay soil is saturated even above the water table:Clay strata: ? = 30%, ?? = 2.72Sandy Strata: ? = 26%, ?? = 2.64 1. Compute the total pressure.2. Compute the pore water pressure.3.Compute the effective stress pressure at a depth of 8m below the ground surface.
The water table is lowered from a depth of 10 ft to a depth of 20 ft in a deposit of silt. All the silt is saturated even after the water table is lowered. Its water content is 26%. Estimate the increase in the effective pressure at a depth of 34 ft on account of lowering the water table. Assume G, = 2.7. 34 ft 20 ft 10 ft 10 ft Silt deposit Figure Ex. 5.7 Original G.W.L. Final G.W.L.
Water flows through a sand filter as shown on the figure. The soil has a cross sectional area of 0.33 m². d1-d2-d3=0.55 m. Head difference is 0.95 m. Inflow Outflow Soil B Soil C d2 Coefficient of Permeability for Each Soil: Soil A Kax 2.37 x 10-2 cm/s Soil A Kaz 1.64 x 10-³ cm/s Soil B Kbx 1.40 x 10-² cm/s Soil B Kbz 2.79 x 10-³ cm/s Soil C Kcx 3.42 × 102 cm/s Soil C Kcz 3.41 x 10³ cm/s Compute the flow of water through the soils in liters/sec. Use 4 decimal places. 3
Q-1: Estimate the consolidation settlement due to the lowering of the water table from the location No. 1 to the location No. 2 in the soil profile. 1 6 m Sand 2 Ya(sand) =17kN/m3 2 m Ysat(sand) = 19kN /m³ 4 m Clay LL = 40%, e, =0.95 Y sat(clay) =18.6kN/m³ Bedrock
4- A 22 ft clay layer in the field (drained on one side) is normally consolidated. When the pressure is increased from 1,000 lb/f? to 3,000o 1b/ft?, the void ratio decreases from 0.9 to 0.75. The hydraulic conductivity, k, of the clay for the above loading range was found to be 2.4 x 10 in'sec. a) How long (in days) will it take for the clay layer to reach 50% consolidation? b) What is the settlement at that time (that is, at 50% consolidation)?
1. For a constant head laboratory permeability test on a fine sand, the following values are given: L = 300 mm; D₁ = 200 mm; h = 400 mm; Vol = 420 m³; t = 4 min; e = 0.55. a. Compute the coefficient of permeability in cm/sec. b. Compute the discharge velocity in cm/sec. c. Compute the velocity. seepage 2. For a falling head permeability test, the following are given. Length of specimen is 380 mm, are of specimen - 6.5 cm², hydraulic conductivity of soil specimen is 0.175 cm/min. a. What should be the area of the stand pipe for the head to drop from 650 cm to 300 cm in 8 min?
Effective Stress in Soil Problem 1. The water table in a certain deposit of soil is at a depth of 2m below the ground surface. The soil consists of clay up to depth of 4m from the ground and below which lies sand. The clay soil is saturated even above the water table: Clay strata: ? = 30%,?? = 2.72 Sandy Strata: ? = 26%, ?? = 2.64 1. Compute the total pressure. 2. Compute the pore water pressure. 3. Compute the effective stress pressure at a depth of 8m below the ground surface